Test Method 8-2013
Colorfastness to Crocking: AATCC Crockmeter
in 1936 by AATCC Committee RA38 (Revised 2013)
Purpose and Scope
1.1 This test method is designed to determine the amount of color transferred
from the surface of colored textile materials to other surfaces by rubbing.
It is applicable to textiles made from all fibers in the form of yarn or fabric
whether dyed, printed or otherwise colored.It is not recommended for use for carpets
or for prints where the singling out of areas may be too small using this method.
1.2 Test procedures employing white test cloth squares, both dry and wet
with water, are given.
1.3 As washing, drycleaning, shrinkage, ironing,
finishing, etc., may affect the degree of color transfer from a material, the
test may be made before, after, or before and after any such treatment.
A colored test specimen is rubbed with white crock test cloth under controlled
2.2 Color transferred to the white test cloth is assessed
by a comparison with the Gray Scale for Staining or the Chromatic Transference
Scale and a grade is assigned.
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